Revolving plow



(No Model.)

J. B. HURD.

REVOLVING PLOW. No. 266,824. Patented Oct. 31, 1882.

WITNESSES INVBNTOR ATTORNEYS.

Nrran STATES JUDSUN l3. HURD, OF SOUR LAKE, TEXAS.

REVOLVING PLOW.

SPECIFICATION forming part of Letters Patent No. 266,824, dated October31, 1882.

Application filed June 27, 1882.

To all whom it may concern Be it known that I, JUDsoN B. HURD, of SourLake, Hardin county, Texas, have invented a new and Improved RevolvingPlow, of which the following is a full, clear, and exact description.

The object of my invention is to provide a new and improved revolvingplow for cutting up, breaking, and turning over the soil or turf, inwhich the cutter-blades are freed automatically from the soil, turf,&c., adhering thereto.

The invention consists in a cylinder to which radial blades areattached, between which movable scraper-blades are held and pressedagainst the radial blades, which scraper-blades are moved to and fromtheedges of theradial blades by pivots attached to thearms 0f thescraperblades and passing into grooves in the end plates, on which thecylinder revolves, whereby when the revolving plow is moved over theground the radial blades cut into the ground, and the scraper-blades aremoved to the outer edges of the radial blades when the same are raised,and scrape 0d the soil, grass, &c., adheringthereto,whichscraper-bladesarecleaned by scraper-plates attached to the frame of theplow.

The invention also consistsin circular cutters at the ends of thecylinder, and in the combination of parts, as will be fully describedhereinafter.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure l is a perspective view of my improved rotary plow, showing theend disks and cutters removed. Fig. 2 is an elevation of one of theslotted circular end cutters. Fig. 3 is a perspective view of thescraping blades placed between the cutting-blades. Fig. 4 is an insideelevation of one of the end disks or plates.

A series of blades, A, are fastened radially and in some suitable mannerin a cylinder, B, of wood or metal, provided with a longitudinal shaft,0. The outer edges of the blades A are preferably sharpened. Betweeneach two cutting-blades A two scraping or cleaning blades, D and E, arearranged, these blades being provided at the ends with arms D and (Nomodel.)

E, which have their free ends mounted on or attached tooutwardly-projecting pivots F, the pivot being fixed to the arm D, andthe arm E working on it, formingahinge, as shown in Fig. 3, and thescraper-blades project toward each other,one preferably overlappingtheother, so thatnodirtcan get betweenthcm and the cylinder. Thescraper-plates are pressed against the cutting-blades bymeans ofsuitable springs, Gr, placed between them. The pivots F pass through radial slots [1 in circular blades J, which are fastened on the ends ofthe cylinder B and revolve with it. Outsideof these circular bladesJeuddisks or plates, K, are mounted on the shaft 0, these plates beingprovided with opposite radial arms, L, and being pro-. vided in theinner surfaces with grooves M for receivingtheendsofthepivotsF.Thegrooves M are in the shape of an enlarged semicircle united by achord at the ends of the curves, the semicircle extendingalongthe uppercurved edge of the end plate or disk and the chord crossing directlybelow the center. Scraper-plates N are attached to the arms L and restat opposite sides of the cylinder against the outer edges of the radialblades A.

The above-described rotary plow or cutter can be mounted on wheels or ina sulky, or can be weighted in any suitable manner, and can be prow'idedwith a handle, 0, as shown, at one or both sides, or other devices forpropulsion, and can be provided with one or more intermediate transversecircular blades.

The operation is as follows: The springs Gr press the outer edges of thescraper-plates D and E against the sides of the blades A. If the rotarycutter or plow is drawn over the ground, the blades A successively cutinto the ground, and thus chop or cut up the ground and turn it over inshort furrows, which lie across the course of the plow. Thescraperblades D E, between those blades A that are cutting into theground, are drawn toward the shaft of the roller B, so that the blades Awill project farther from the roller B than the scraper-blades, for asthe stra ght part of the groove extends across the lower side of the endplates, K, the scraper-blades will be raised by their pivots F, whichrun in the grooves M. As the plow revolves and the cutting-blades areraised out of the ground the scraper-blades D E are moved toward theouter edges of the blades A by-the pivots F passingalong thesemicircular part of the groove M, and by this means thesescraper-plates are made to scrape all soil, grasses. and trash thatadhere to the blades A from the same, and when these blades enter theground the scraper-blades D E are withdrawn from the edges of the bladesAby the pivots F passing along the transverse part of the groove M. Thescraper-plates N clean the scraper-blades D E as they pass.

This rotary cutter or plow can be used as a general pulvcrizer, as ahoe, or to break ground, or .to cut sods and turf, or for similarpurposes. As shown, a handle, 0, is fixed behind. A similar contrivancemay be fixed in front for a beam, and to this beam or short tongue acaster may be fixed, so that the plow may be easily handled and shiftedfrom side to side by lifting up on the handle 0 and throwing the weightof the plow on the caster.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A revolving plow constructed, substantially asherein shown and described, with a series of radial blades attached to aroller or cylinder and a series of radiallymovable scraper-bladesbetween the cutting-blades, as set forth.

2. In a revolving plow, the combination, with a cylinder and a series ofradial blades attached to the same, of movable scraperblades between thecutting-blades, and devices for moving the scraper-blades to and fromthe outer edges of the cutting-blades, substantially as herein shown anddescribed, and for the purpose set forth.

3. In a revolving plow, the combination, with a cylinder and a' seriesof radial blades attached to the same, of scraper-blades between thecutting-blades, and ofcircular blades at the ends of the cylinder,substantially as herein shown and described, and for the, purpose setforth. i

4. In a revolving plow, the combination, with a cylinder and radialblades attached to the same, of movable scraper-blades between the same,and of scraper-plates resting against the outer edges of thecutting-plates and attached to the frame of the plow or the end platesof the roller, substantially as herein shown and described, and for thepurposes set forth.

5. In a revolving plow, the combination, with the cylinder B and theradial blades A, attached to the same, of the scraper-blades D E betweenthe blades A, the pivots F, attached to the arms of the blades *D E, andthe end plates, K, each provided with a groove, M, in the shape of asemicircle united at the ends by a chord, substantially as herein shownand described, and for thepurpose set forth.

6. In a revolving plow, the combination, with the cylinder B and theradial blades A, of the scraper-blades D E, the pivots F, attached tothe ends of the arms of the same, the circular cutters J, provided withradial slots H, and the end plates, K, provided with grooves M in theinner surfaces, substantiallyas here in shown and described, and for thepurpose set forth.

7. In a revolving plow, the combination, with the cylinder B and theradial blades A, of the scraper-plates D E between the blades A, thesprings for pressing the outer edges ofthe blades D E against the bladesA, and devices for moving the blades D E to and from the outer edges ofthe blades A, substantially as herein shown and described, and for thepurpose set forth.

JUDSON B. HURD.

Witnesses:

R. J. RODGERS, 1t. Tenn.

